Using an Allocated Batch in a New Document 
The allocation can be removed only from the original allocating document. If you attempt to select batches that are allocated elsewhere, an error message is displayed.
The following procedure enables you to allocate batches to a new document.
Procedure
From the SAP Business One Main Menu, choose
Inventory 
Item Management Batches Batch Details 
.The Batch Details Window appears.
Choose the relevant item.
Right-click the Batch Details window and choose Batch Number Transactions Report.
The Batch Number Transactions Report window appears.
In the Transactions for Batch table, choose the row containing the allocated item and click
(Link Arrow) to the left of the item
in the Document column.
NoteThe value in the Direction column must be Allocated.
End of the note.The original allocating documents open.
In the row containing the allocated item, click the icon in the Document column to open the originating document.
Open the Batch Number Selection Window. Choose one of the following methods:
Before adding the document, in the Quantity field, press CTRL, and TAB.
Before adding the document, right-click the Quantity field and choose Batch/Serial Numbers.
From the Goto menu, choose Batch/Serial Numbers.
Remove the batch from the Selected Batches table.
Open the new document, insert the item, and open the Batch Number Selection window to select the previously allocated batch.